Finding the Fourth Proportional to 2,118,581.31, 2,920,898.04 and 1,372,179.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118,581.31 : 2,920,898.04 = 1,372,179.17 : x
2. Step 2: Convert to fraction form
   2,118,581.31/2,920,898.04 = 1,372,179.17/x
3. Step 3: Cross multiply
   2,118,581.31x = 2,920,898.04 × 1,372,179.17
4. Step 4: Simplify right side
   2,118,581.31x = 4,007,995,433,577.34
5. Step 5: Solve for x
   x = 4,007,995,433,577.34/2,118,581.31
6. Step 6: Final answer
   x = 1,891,829.88